Clenching-block for stapling-machines.



H. B. WALTER.

CLENCHING BLOCK FOR STAFLING MACHINES.

APPHCATNYN FILED FEB- 10. I915- Patented Dec. 18; 1917.

3 SHEETS-SHfiET I.

H. B. WALTER. CLENCHING BLOCK r03 STAPLING mcumis.

APPLICATION: FILED FEB. 10. NW.

3 SHEETSSHEET 2- Patentd Dec. 18,1917. Y

H. B. WALTER. CLENCHING BLOCK FOR STAPL ING MACHINES.

APPLICATION FILED FEB- 10. 1916. 1 Patented Dec. 18,- 1917.

. 3 SHEETS-SHEET 3.

GEZFJHG-BLOGK FOE STAFLINGFEACHINES.

ispcclficericn of otters la tenic.

Poiierited Dec. is, rem.

Applicciicn filed February 10, lfilcfiwde'r 0. 77,523.

To aZZ whom it may cancers:

Be it known diet I, Hluaizrsori B. Viewer, citizen of the United States,residing at Dan'ville, in the county of Vermilion and Slate or llliuois,have invented ccriain new and. useful improvements in Clenching Blocksfor Staplirig-ldechines, of which the following is a specification.

My invention loco improvemenic in clenching blocks and accessories forstapling machines heading solid end fiber boxes.

The invention consists in novel form of clenching block slidebly mountedupon its support so it mey be raised or lowered vertically for thepurpose of entering 1311c recessed head or she her during the operationof stitching in rho heads and again for removing box he hood is stitchedslight springing mevemeni, away from the stapl I thus ollowme the blockto yield to any increased or excessive Szhickncss, due to additionallayers in the sock being operatcd upon.

In the eccomp'zmyirig drowings:-

Figure l side elevation of the entire machine showing ahe relation ofthe parts.

Fig. 2 is 2. view in side elevation of lzhe upper end of staplingmachine showing my improvements some. ed.

Fig. 3 is a. top plan view showing the opcrating mechanism.

Fig. l is c side elevation looking from the operating side of machine;

Fig. 5 is 2.11 enlarged side elevation of the clenching-block; and

Fig. 3 is an end elevation of the same. To base 1 is a. verticallyadjust able suppers (worrying side members 3 and 4C. In upper ends ofthe side members 3 and is pivofixeliy recruited 4*, a. stapling machine5 which is. held against rotation by means of spring bolt 6 and recess7. The housing for the staple-forming and feeding mechanism is disclosedat 5. A clenching bar 8 ispivota-lly mounted upon the mochinc 5, at 9.Rigidly oilixcd to the clenching bar 8 is a. strong steel spring 10, thetension of whichis ad usted by meens'of the adjusting screws 11. p

Toward the bottom of the clenching bar 8 a' slot l2 is provided, whichis adapted to slidably receive the-L-shcpedclenching block 13. The upperportion of the block 13 has rigidly attached fro it side plates 14 and15. These plates are screwed on to a small block 1 A spring 17 isinterposed between a bar 18 and the block 16, and the screw 19 rigidlyholds them. together. One end of the spring 17 is adapted to bearagainst the clenching bar 8 to keep the block 13 in olinement with theslots 12. A cross plate 8 is fastened to clenching her 8 and is adaptedto be engaged by the side ple tes M and 15 to limlt the downwardmovement of the clenching block 13.

r The upper edge of the bar 18 is provided with-en orifice20, throughwhich is passed one end of thebent lever 21, which is pivotolly mountedat 22 upon the top of the side plate 3.

A lever 23 is pivoted at 24: on one edge of the side plate 3. One end ofthe lever 23 is connected with a link 25. The other end of link 25 isconnected to-the lever 21. On the other side of the pivot 24 there isrigidly afixed to lever 23 a bar 26 at 26' which I is connected to theclutch mechanism 27. The lever 23 has pivotal connection with a treedlerod 28. Adjustment of the frame vertically is possible and the lock bolt29 in the connection 30 permits the trcadle rod 28 to slidelip or downthrough-the cofmection 30 when the boll; 29 is loosened and when itisiiightened.

will be hel dat whatever positionis desired,

I provide straps 31 and 32 csigui'des for.

the rods 34 and 35, and I also provide turn buckle 33;f01 the purpose ofmaking slight adjustments, between the two rods 34: and

35, which form a continuation of treadle rod 28. Rod 35 is connected atits lower end to the trcadle lever 36, which is pivoted at 37 end isprovided with the treadlc 38.

The operation is as follows:

After the stapling machine has been edjusted vertically eeeording to thesize ii? the box to be stapled and set rigid res .3 to have the box withinserted heed, run intothe machine for the purpose oi inserting thestaples, it will be obvious that the reee head with the flanges engagingthe body oi the box would strike the clencbiiig bark the clenching billmust be inside of the below the flanges while the stitches are being putin; and since the operator has both hands engaged while pushing the be};into the machine, and both hands are further on gaged While sliding thebox throogh the machine during the stitching operation, it

' is a areiit that the civic iiip' block must be raised so as to giveclearance for the flanges oi the be); head. iliis aceom; Iished by meansof the spring 39, connected to lever near the point of connection oisaid to link 25. Y

The cienehiiig'bloek 13 normally in raised position permitting theoperator 'io slide 2i box under the tepliugg; machine and intopositionwithout engaging the flanges of said box with flanges oi. saidclenching block 13. After placing it desired the operator places'hisfoot on the tremjlle 38, pulling the treadle bur doii'nward, and throughthe lovers 23 and 21 and liiil; forcing the bar 18 doii'iiwsird carryingwith it the block 13 and bringing it downward to its operable position.

As soon as the block 13 is in its operable position the rigid bar 26Will have operated the clutch mechanism 2'? and the step .1 machine willbo m the opermieu oi siiipliifu the heads ii the boxes. The o 'ieratioiiwil be continued until the operator removes his foot from the trezidle'38 when the block 13 will be raised through the bar 18 lower 23, andspring 25). Then at the same t me the bar 26 will operate to Cleo-hitch7 head and cause it to cease its wei' z and the box may he slid out fromunder i infuillllllfi.

The tube or body portion of solid end boxes made of one sheet creasedand foldml into rectangular form by means of a hipped joint, and thesebodies with the inserted head are pushed through the ii'uiohiiie headsand stapled into position to make the finished box. It tliereioie,apparent that there are two thicknesses of stock to be stapled togetherfor the entire eireum 'eiiee except where the hip is encountered atwhich point there are three thieknesses to stitched.

if the clenching block wa-sliung iii 1-} rigid condition, when the pointwhere three thicknesses would come through is reeohechthe machine wouldbe choked. To overcome this the heavy steel spring- 10 ispTZOVli'lQflfli; the upper end of the clenching her 8, and is en gagedby the adjusting screws 11. This orrangement permits the oieiiehiiig herto give wfi'ieiently to allow the extra this. mess ofliorizoi':tslly-disposi o i l fo io flood,

ing-bar carried by block nu inted in said ranged for vertiesi iiiolioi'issontslly-o' L 1e combination i zontslly-disposd "her ozm'ied by'Zll()-1iiii'(i. i i for Yfil'l'iCatl me im to the lim 1* t end, meansfor block stapling clenching 53 (mi; sod tuned iel iti us to be tepidcured in the uornmll hold in position during uiul iiiezius on the starclenching hm: adopt? and soul lmi to re r. oi the clenching (3. ".ihecombination. :1 stuplin! mounted iii wio slouch pluios HEP-Q43. g mlrli)(fli,il liar, spit-iii n suul hair and said spring; g ZiEI'tHl-P-(l to bear against a horizontally-disposed stepliiigdieod, aclenching-liar pii'otully mounted 'tliereom e elenchingbloclz mountedll} said oleiiehiiig bar, and arranged for vertical iii-ovemeiit with tosaid horizontally-d posed piin -iiezid, and ii cieiiohing-bar forlimiting the movement of said clenching-block. i

, 8. The combination with aframe, of a stapling-head, a clenching-barpivotally mounted thereon, a clenching-block vertically movable in saidclenching-bar, said.

clenching-block having afiixed thereto a vertically adjustable member,and resilient means connected to said member and arranged to press uponthe clenching-bar, thus rendering possible vertical reciprocation of?mounted on said stapling-head, a resilient member math ted upon saidclenching-bar so as to extend beyond the axis of oscillation, adjustablemeans adapted to bear upon said resilient means for putting a tensionthereon, other adjusting means adapted to bear againstsaid clenching-baron the other side of the pivotal point from said resilient means, thearrangement being such that the clenching-bar can be adjusted to any required position and held yieldingly in such position, and aclenching-block mounted on said clenching-bar. V

' 11. The combination with a frame, of a horizontallydisposedstapling-head, a c enching-bar mounted thereon, a'clenchingblockslidably mounted'upon said clenching-bar and arranged to receive lateralpressure, means for limiting the reciprocation of said clenching-blockin each direction, and means for actuatingsaid block.

12. The combination with a, frame, of a stapling-machine pivotallymounted therein, normall arranged to operate in one position, andmanually-operable means for holding said machine in its normal positionthe whole so arranged that the stapling-mac he may be swung to anotherposition for inspection and adjustment.

13. The combination with-a frame, of a stapling-machine pivotallymounted therein, arranged to be'positioned normally so as to drivestaples in a horizontal plane, and

means for holding it in its normal position, said means .being manuallyoperable to release'said machine when desired, so that it may be swungabout its pivot for inspection and adjustment.

14. The combination with a frame, of a stapling-machine pivotallymounted there.

in, and adapted normally to drive staples in a horizontal plane, and"manual1ycontrollable locking means for holding said stapling- -machinein its normal position, and so arranged as to permit said machine toswing about its pivot, when desired, for inspection and adjustment.

15. The combination with a frame having .two vertical side plates, of astapling-head pivotally mounted thereon,'. a bolt mounted on saidstapling-head, one of said side lates having recesses adapted to receivesai bolt and means for vieldingl holding said bolt in one of saidrecesses, w ereby the rotation of the stapling-head is prevented.

In testimony whereof I afllx my signature.

HARRISON B. WALTER.

